Home / 725,434.38-1,001,079.45-403,136.28

Finding the Fourth Proportional to 725,434.38, 1,001,079.45 and 403,136.28

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Solution

The fourth proportional to 725,434.38, 1,001,079.45 and 403,136.28 is: 556,316.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,434.38 : 1,001,079.45 = 403,136.28 : x
  2. Step 2: Convert to fraction form
    725,434.38/1,001,079.45 = 403,136.28/x
  3. Step 3: Cross multiply
    725,434.38x = 1,001,079.45 × 403,136.28
  4. Step 4: Simplify right side
    725,434.38x = 403,571,445,457.45
  5. Step 5: Solve for x
    x = 403,571,445,457.45/725,434.38
  6. Step 6: Final answer
    x = 556,316.96

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.